Introduction | 1. Inheritance transparency | 1.1 Global, local, and mixed aes() | 1.2 Global vs per-layer data | 1.3 Layer order | 2. Bar chart equivalence | 2.1 Direct equivalents | 2.2 geom_col() — structural mode required | 2.3 coord_flip() — visual mode required | 2.4 Scale name vs labs() — visual mode required | 3. Count plot equivalence | 3.1 geom_count() variants — direct equivalents | 3.2 geom_point(aes(size = n)) + pre-counted data — separate equivalence group | 3.5 Pre-counted bar charts — exhausting the equivalence cases | 4. Histogram binning variants | 5. Pending work | 5.1 Cross-geom stat equivalence | 5.2 Multi-dataset layer verification
Package: ggspec 0.1.0
ggspec: Extract and Compare 'ggplot2' Plot Specifications as Tidy Data Frames
Inspects 'ggplot' objects by extracting their full declarative specification - layers, aesthetic mappings, scales, facets, coordinate systems, and labels - as tidy data frames. A second tier of functions enables structural comparison of two 'ggplot' objects, supporting automated plot testing, auditing, and framework-agnostic grading workflows. Unlike 'ggcheck', which is designed exclusively for 'learnr'/'gradethis' pipelines and returns ad-hoc objects, 'ggspec' returns rectangular, pipeable output and does not require any grading framework as a dependency.
Authors:
ggspec_0.1.0.tar.gz
ggspec_0.1.0.zip(r-4.7-any)ggspec_0.1.0.zip(r-4.6-any)ggspec_0.1.0.zip(r-4.5-any)
ggspec_0.1.0.tgz(r-4.6-any)ggspec_0.1.0.tgz(r-4.5-any)
ggspec_0.1.0.tar.gz(r-4.7-any)ggspec_0.1.0.tar.gz(r-4.6-any)
ggspec_0.1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
ggspec/json (API)
| # Install 'ggspec' in R: |
| install.packages('ggspec', repos = c('https://clement-lee.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/clement-lee/ggspec/issues
Last updated from:1f4e2bf7d3. Checks:9 OK. Indexed: yes.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel | OK | 125 | ||
| source / vignettes | OK | 180 | ||
| linux-release | OK | 126 | ||
| macos-release | OK | 191 | ||
| macos-oldrel | OK | 170 | ||
| windows-devel | OK | 89 | ||
| windows-release | OK | 88 | ||
| windows-oldrel | OK | 89 | ||
| wasm-release | OK | 112 |
Exports:assert_ggplotcanoncheck_plotcompare_conceptualcompare_plotscompare_visualenrich_specequiv_aesequiv_coordequiv_dataequiv_facetsequiv_labelsequiv_layersequiv_paramsequiv_plotequiv_renderedequiv_scalesexpect_equiv_plothas_layeris_ggplotmapping_existsn_layersspec_aesspec_coordspec_dataspec_facetsspec_labelsspec_layersspec_plotspec_scales
Dependencies:clicpp11dplyrfarvergenericsggplot2gluegtableisobandlabelinglifecyclemagrittrpillarpkgconfigR6RColorBrewerrlangS7scalestibbletidyselectutf8vctrsviridisLitewithr
Equivalence Patterns and Canonicalisation Modes
Last update: 2026-05-06
Started: 2026-04-14
Extracting Plot Specifications with ggspec
Introduction | A motivating example | Layer specification | Controlling inheritance | Aesthetic specification (long format) | Scale specification | Facet specification | Label specification | Coordinate system specification | The master summary: spec_plot()
Last update: 2026-05-06
Started: 2026-04-09
Plot Grading and Testing with ggspec
Introduction | Comparing two plots with equiv_plot() | Running individual checks | The exact argument | Framework-agnostic checking with check_plot() | Swapping in a learnr/gradethis fail function | Using expect_equiv_plot() in testthat | Inspecting the diff | Comparing layer parameters | Canonicalisation-aware comparison with compare_plots() | Modes | Using a mode in check_plot() | What each mode covers | Summary of available checks
Last update: 2026-05-06
Started: 2026-04-09
